96 lines
2.9 KiB
C
96 lines
2.9 KiB
C
/* ----> DO NOT REMOVE THE FOLLOWING NOTICE <----
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Copyright (c) 2014-2015 Datalight, Inc.
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All Rights Reserved Worldwide.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; use version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but "AS-IS," WITHOUT ANY WARRANTY; without even the implied warranty
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of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/* Businesses and individuals that for commercial or other reasons cannot
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comply with the terms of the GPLv2 license may obtain a commercial license
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before incorporating Reliance Edge into proprietary software for
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distribution in any form. Visit http://www.datalight.com/reliance-edge for
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more information.
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*/
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/** @file
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*/
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#ifndef REDCOREVOL_H
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#define REDCOREVOL_H
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/** @brief Per-volume run-time data specific to the core.
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*/
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typedef struct
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{
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/** Whether this volume uses the inline imap (true) or external imap
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(false). Computed at initialization time based on the block count.
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*/
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bool fImapInline;
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#if REDCONF_IMAP_EXTERNAL == 1
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/** First block number of the on-disk imap. Valid only when fImapInline
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is false.
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*/
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uint32_t ulImapStartBN;
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/** The number of double-allocated imap nodes that make up the imap.
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*/
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uint32_t ulImapNodeCount;
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#endif
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/** Block number where the inode table starts.
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*/
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uint32_t ulInodeTableStartBN;
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/** First block number that can be allocated.
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*/
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uint32_t ulFirstAllocableBN;
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/** The two metaroot structures, committed and working state.
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*/
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METAROOT aMR[2U];
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/** The index of the current metaroot; must be 0 or 1.
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*/
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uint8_t bCurMR;
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/** Whether the volume has been branched or not.
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*/
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bool fBranched;
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/** The number of blocks which will become free after the next transaction.
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*/
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uint32_t ulAlmostFreeBlocks;
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#if RESERVED_BLOCKS > 0U
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/** Whether to use the blocks reserved for operations that create free
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space.
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*/
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bool fUseReservedBlocks;
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#endif
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} COREVOLUME;
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/* Pointer to the core volume currently being accessed; populated during
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RedCoreVolSetCurrent().
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*/
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extern COREVOLUME * CONST_IF_ONE_VOLUME gpRedCoreVol;
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/* Pointer to the metaroot currently being accessed; populated during
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RedCoreVolSetCurrent() and RedCoreVolTransact().
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*/
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extern METAROOT *gpRedMR;
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#endif
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